Portable boring machine



l .1,449,361 W. M. WINK PORTABLE BORING MACHINE v F11- fled sept .A 14, 1921 4 mats-sheet 1 Mar. Z0, 1923. 1,449,361

w. M. WINK PORTABLE BORING MACHINE 11 sheets-sheet, 2

Filed Sept 14, 1921 m N l n I: i l lh o O O O @am iM,

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W. M. WINK PORTABLE BORING MACHINE 4 sheets-sheet 5 Filed Sept. 14, 1921 lill Mar. 20, 1,923. 1,449,361

W. M. WINK PORTABLE BORING MACHINE Filed Sept 14, 1921 4 sheets-sheet 4 Patented Mar. 20, i923.

einen oer-ice.

WILLIAM M; WINX. or ownnsnono, KENTUCKY, Assronon or onnnatr To FREDERICK nonnannnn, or KENTUCKY.

PORTABLE BORING- iIlCI-IN'E.

Application filed September 1 To all l2li/"wm it may (foncer-1t:

Beit: known that I, VVILL'LAM ivi.. VINK, a

citizen oi" the VUnited States7 residing` at @Wensborm` in the county of Daviess and Boring Machines, offivhichthe following is a specication.

My invention relates to improvements in boring L- object looiing motor. lumber 1n the general construction line and ior this purpose made portable7 so that machine by means of a gasoline the entire device will include a motor and1 the boring machine may be easily transmitted from place to place. Another object of the invention is to provide an adjustable` stand il-'or `the boring unit upon the base ot' the device, and `for this reason the device has greater advantages in cutting' mortices andleng'th slots required in building con struction. y y

The machine as illustrated in the draw ings, has been thoroughly tested during a period oi' several months and as a result of this trial it has proven itself to be practical and of the highest degree oi' eiiiciency. It is able to accomplish the ivorl of live men when properly handled by a single operator.

.fis the machine as shown Weighs complete not over two hundred and twenty-tive pounds, its position can easily be changed by tivo or three men, but it Will be understood that the device may be constructed lighter and of smaller dimensions orlarger and heavier, depending on circumstances and localities.

lt will be evident that the machine can be used not only as a boring machine but also as a screw driving machine or for any other machine operation Where a rotating tool is employed. n

One embodiment oi' the invention is illustrated in the accompanying drawings, and

Figure 1 is a side elevation, partly in sec* tion, of a boring machine in position on its Stand With motor and gearing complete;

Figure 2 is a top plan view of Figure 1;

Figure 3 is a vertical section alongv line 3-3 ofiFigure 1;

Figure 4 is a rear elevation of one of the main shaft supports;

machines and `has for its principal applicationoit power to a vertical' lt isintended for use for boringjg,

a, reci. sei-m1 no. 500,484.

Figure 5 is a cross section alongr line oi Figure Y Figure 6 is a cross section along' of Figure drawn in larger scale; Figure 7 is a detail ott a stop. ln the drawings reference numeral 15 de` notes the base ot the device7 preferably constructed oi two parallel angle irons 16 which are suitably braced and connected atboth ends by cross angles 17, which are longer than the general Width o'f` the base `to form a .firm support for the same. lVooden blocks 18 are inserted between the angles 16 and line 6--6 and 17 .tor the purpose of raising the hasey slightly above the Iground and grippers or claws 19 `are provided at thel outer endsot the angles 1?, the teeth() ot which penetrate into the fcundationupon which the machine is restino during` operation.

(,ioss'beams 21 are provided on top oic the angles 1G near one end ot' the base intended 'for carrying the motor and gearing'. The motor i) i lieams 2l and may be ot any suitable de- Whether upright or horizontal.` and is here shown as a Lgasoline motor, but ofcourse kerosene or any other liquid fuel mav be employed. starting; handle 36 and a `tlv Wheel 37 are here shoivnto the rear of the machine.

ln liront and rear oi the motor are placed two stands or main supports Q9 and 24 tor the gearing'. These supports are bolted on top of the cross beams Q1 and provided with a suitable brace- 25 for holding them rigidly together. At the upper end of the supports 23 and- Qllare provided bea-rings 96 for the main shaft 2?` which runs inithe lon0itudinal direction ot the base. Upon this shaft a spur Arear 28 is mounted to run looseh7 and is in mesh with a similar `qear 29 driven by the driver' 30 from the motorshaft. A

clutch 31 is also mounted on the main shaft 22 is placed on tufo of these cross leo - 52 embracing these bars.

ably constructed of angle irons, of which two, 45, run in longitudinal direction and the other two 46, in transverse direction of the slide, and these angle irons are suitably braced and riveted together at the corners. The width of the slide is so selected that it lits between the upright walls of the angle irons 16 of the base so that the slide may be shifted in longitudinal direction upon the base 15. The slide may be clamped or in any other suitable manner held in a selected position upon the base.

The stand 41 consists of two perpendicular bars 47 and two inclined bars 48 each provided with suitable ears at their lower ends and connected by means of bolts to the feet 49 fastened to the slide 40. vThe bars 47 and 48 converge upwardly tov meet at the top. Where they are held together' by means of brackets 50 and a cross connection 51.

The cross head 42 is made to slide up and down on the perpendicular bars 47 and is for this purpose provided with bearing lugs This cross head 42 is made in the shape of an open frame `and has bearings for the perpendicular shaft 53 which, at its lower end, carries a chuck 54 for the boring bit 43 or any other revoluble tool. At the upper end of the shaft 53 is secured a gear 55 meshing with a similar gear 56 ruiming loosely on a cross shaft 57, which is also carried in the cross head 42. This shaft 57 has a large gear 58 keyed on one end thereof and in mesh therewith is a pinion 59 to the rear of the stand 41. The pinion 59 is keyed on a driving shaft 60 in such a manner that a sliding motion is permittedl between the pinion and the shaft. The bearing for this shaft consists of a yoke 61 provided with a forwardly extending tube 62 embracingA shaft 60. This yoke 61 is carried upon the shaft 57 so that the shaft is able to revolve. therew in and it will be noted that the axis of this shaft and the pinion 59 does not run radially with respect to shaft 57 and gear 58 but tangentially to a circle concentric to the axis of the shaft 57. For this reason the teeth andv gears 58 and 59 cannot be cut radially but directed tangentially to said circle.

The rear end of shaft 6() is connected to the main shaft 27 by means of a universal joint 65 of any well known construction and the shaft 60 extends sufficiently far beyond the end of the tube 62 of the yoke 61 to permit the slide 40 to be placed at the foremost end of the base, without loosingits grip on the pinion 59. it will also be understood. that upon raising and lowering the cross head 42 to its limits between the upper and lower ends of the stand 41, the yoke 61 will be able to oscillate vupon the shaft 57 from the fulcrum point of the universal joint 65, while the pinion 59 is still in positive engagement with the shaft 69, or in other words that the working tool 43 will continue to revolve independently of the position,up and down, of the cross head 42 on the stand 41, as well as the position of the slide 40 in relation to the base 15.

At the forward end of the starting rody 34 is provided a handle 70 and this rod runs in a bearing 71 provided on one of the brackets 50. Keyed to shaft 57 and between the two sides of the cross head 42, is a coupling muff 72 which is normally held in engagement with the hub of the bevel gear 56 by means of a spring 73 so that with the parts in this position, the bevel gears 56 and 55 will run whenever the large gear 58 is running. This coupling muff 72 can be drawn out from engagement with the bevel 'ear 56 by manipulation of its handle 74, so that without touching the handle the boring tool 43 may be stopped momentarily while the shafts 57 and 58 are still ruiming because, as already said, the bevel gear 56 runs loosely upon the shaft 57.

For the purpose of raising and lowering the cross head 42 and with it the working tool 43, a rack 75 is suspended from the cross bar 51 at the top of the stand 41. The teeth on rack 75 will permanently mesh with a spur gear 76 running loosely on the shaft 57 and the rack and gear are held together by means of a roller 77 carried by a spider 78 bolted to the cross head 42. Referring to Figure 5 it will be seen that t-he spur gear 76 has a sleeve like hub 79 which at its outer end carries a hub 8O for a crank handle 81, `this hub being rigidly secured upon the end of the hub 7 9 so that the crank handle 81 and the gear 76 will always run together. In order to make the length of the crank arm adjustable, it is made to slide upon an extension of the hub 8O and is held rigid in connection therewith by means of set screws 82. lt will now be seen that by turning the crank handle 81 the cross head with the entire gearing and the working tool carried by the same, may be lowered or raised as required.

A spring catch 85 with a tooth 86 is provided for the purpose of holding the cross head with the gearing in the uppermost position on the stand 41, when the crosshead has been raised and the machine is not in use. The tooth 86 then engages over the top of the cross bar 51. Upon one or both of the upright bars 47 is provided a stop or clamp 90 which may be adjusted up or down on a bar and held by means of a clamp or wing nut 91. This clamp is used for obtaining uniformity in the depth of a number of holes t0 be bored and it is clear that, with the boring tool resting on top of the work` the distance between the lower face of the bearing member 52 on the cross lOO head 42, and the upper face of the clamp 90, will represent the exact depth of the holes. i

The machine is operated in the following manner:

lifter the base with the motor and the boring unit upon it has. been placed in ay proper position for doing the work, the slide 410 is pushed back or forth. on the base l5 until the boring tool is in alignment with the part to be bored. The motor is now started by turning the starting crank to rotate thefly-wheel which ywill set the gearings 30, 29nand 28 in motion. As, however, the gear wheel 28 runs loosely on shaft 27, the boring unit will still remain stationary. The clutch handle is now drawn toward the operator in the direction of the arrow X in Figure i, which will connect the clutch 31 with the gear wheel 28 and start the turning of the shafts 27 and 60 and gears 59 and 58together with the cross shaft 57 and :nuff coupling 72.` While holding the coupling 72 out of engagement with the bevel gear 56, the catch 85 is released and by means of theterankv handle 3l, the cross head with the gearing and the boring tool i3 is lowered until the latter rests on top of the work to be operated upon. `The crank handle 8l is now released and by letting go of the handle 74, the coupling engages with the gear wheel 56, which now starts to revolve with the shaft 57 and actuates gear wheel together' with the upper right shaft 53 and the boring tool 43. The boring tool i3 will now start to revolve and bore the hole to depthequal tothe setting of the stop clamp 90, because as soon as the lower bearing 52 of the cross head i2 has gone .far

enough to abut against the clamp 90, the tool 3 cannot penetrate any deeper inthe work even if it continues to revolve before the muli coupling 72 is drawn out. As soon as that has been done the head together with the tool 4S are lelevated by means of the crank handle 81 through the intermediary ol rack and wheel 75 and 76.

It will be noted that the feeding of the boring tool normally is done by gravity, but that the handle 8l may also be utilized for this purpose, particularly if the material to be operated upon is very hard, or if the rapidity of boring is desired to be in` creased.

Having thus described the invention what is claimed as new is:

l. In combination with a portable base carrying a motor with suitable gears and` provided with longitudinal run ways, a main shaft and a clutch between said gears and said shaft; of a slide adjustably arranged upon said run ways, a stand including vfeet secured on said slide, a pair of guides secured in a pair of said feet, braces rigidly connecting the free ends of the guides "connecting the free ends carrying a motor with suitable gears and provided with longitudinal run ways, a main shait and a clutch between said gears and said shaft; of a slide adjustably arrangedy upon said run ways, a stand including feet secured on said slide, a pair of guides secured in a pair of said feet, braces rigidly connecting thev rear ends of the guides with another pair of said feet, the corresponding guides and braces being situated in the sainer longitudinal plane of said slide, a cross head adapted to slide on said guides, -a revoluble tool carried by said cross head, a transmission connecting said main shaft and said tool, an operating handle for said clutch mounted on said stand, and means fora displacing said tool in the direction of its axis of operation.

3. In combination with a portable basecarrying a motor 4with suitable gears and provided with longitudinal run ways, amain shaft and a clutch between said gears and said shaft; upon said run ways, a stand including feet secured on said slide, a pair of guides secured in a pair of said feet. braces rigidly connecting the `free ends of the guides with another pair of said feet, the corresponding guides and braces being situated in the saine loin-itudinal` planeof said slide, a cross head adapted to slide on said guides, a revoluble tool carried by said cross head, a transmission connecting said main shaft and said tool, an operating handle for said clutch mounted on said stand, means for displacing said tool in the direction of its axis of operation, and a stop connected with said guides .for limiting the extension of said displacement. v

4. ln combination with a portable base carrying a motor with suitable gears and provided with longitudinal run ways, a main shaft and a clutch between said gears and said shaft; of afslide adjustably an ranged upon said run ways, a stand including feet secured. on said slide, a pair of guides securediin a pair of said feet, braces rigidly of the guides with another pair guides and braces being situated in the same longitudinal plane of said slide, a cross head adapted to slide on said guides, a revoluble tool carried by said cross head, a transmission connecting said main shaft and said tool, andan operating handle for said clutch mounted on said stand, said transmission of a slide adjustably arrangedy of said feetgthe corresponding` including a coupling member adapted to be actuated independent of said clutch operating handle, said transmission comprising a shaft for the vworking tool in alignment therewith, an operating shaft running transversely to said tool shaft, both of said shafts running in bearings on said cross heady; bevel gear rigidly secured on said tool shaft and the second bevel gearv in mesh with said first bevel mounted loosely upon said transverse shaft, a coupling keyed upon said transverse shaft and adapted to engage said second bevel gear, and means for actuating said coupling independently of said clutch operating handle.

5. In combination with a portable base carrying a motor with suitable gears and provided with longitudinal run ways, main shaft and a clutch between said gears and said shaft;

of a slide adjustably arranged upon said run ways, a stand including feet secured on said slide, a pair of guides secured in a pair of said feet, braces rigidly connecting the free ends of the guides with another pair of said feet, the corresponding guides andbraces being situated in the same longitudinal plane of said slide, a cross head adapted to slide on said guides, a revoluble tool carried by said cross head, a Jtransmission connecting said main shaft and Y said tool, and an operating handle for said clutch mounted on said stand, said transmission comprising a shaft for the working tool in alignment therewith, an operating shaft running transversely to said tool shaft, both of said shafts running in bearings on said cross head, a longitudinal shaft having a universal joint connection with said main shaft, a sleeve mounted loosely on said transverse shaft and forming a bearing for said longitudinal shaft, a clutch between said sleeve and said transverse shaft, said longitudinal shafthaving slidable and revoluble bearing in said sleeve and in tangential direction with respect to said transverse shaft, a bevel gear secured to said trans verse shaft and a pinion slidably but nonrevolubly mounted upon said longitudinal shaft in said sleeve and meshing with said last named gear. l

6. In combination with a portable base carrying a motor with suitable gears and provided with longitudinal run ways, a main shaft and a clutch between said gears and said shaft; of a slide adjustably arranged upon said run Ways, a stand including feet secured on said slide, a pair of guides secured in a pair of said feet, braces rigidly connecting the free ends of the l'guides with another pair oflr said feet, the corresponding guides and braces being situated in the same longitudinal plane of said slide, a cross head adapted to slide on said guides, a revoluble tool carried by said cross head, a transmission connecting said main shaft and said tool, and ank operating handle for said clutch mounted on said stand, said transmission comprising a shaft for the working tool in alignment therewith, an operating shaft running transversely to said tool shaft, both of said shafts running in bearings on said cross head, a longitudinal shaft having a universal joint connection with said main.

shaft, a sleeve mounted loosely on said transverse shaft and forming a bearing for said longitudinal shaft, a clutch between said sleeve and said transverse shaft, said longitudinal shaft having slidable and revoluble bearing in said sleeve and in tangential direction with respect to said transverse shaft, a bevel gear secured to said transverse shaft and a pinion slidably but non revolubly mounted upon said longitudinal shaft in said sleeve and meshing with said last named gear, and means for displacing said tool in the direction of its axis of operation.

In testimony whereof I affix my signature.

f WILLIAM M. WINK. [1.. s] 

